CN102535624B

CN102535624B - Sewage concentration drainage device

Info

Publication number: CN102535624B
Application number: CN201110367071.1A
Authority: CN
Inventors: 解清杰; 袁广娇; 吴春笃
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2011-11-18
Filing date: 2011-11-18
Publication date: 2014-04-09
Anticipated expiration: 2031-11-18
Also published as: CN102535624A

Abstract

The invention discloses a sewage concentration device, which comprises a sewage pretreatment device, a sewage drainage device and a sewage concentration drainage device. The sewage pretreatment device comprises a special filter material layer; the sewage drainage device comprises a pressure valve, when water flow is low, the pressure valve is automatically opened so that sewage is drained, and when the water flow is high, the pressure valve is closed automatically; and the sewage concentration drainage device comprises a membrane, a water gathering tank, a clear water drainage tube and a concentrated sewage drainage tube. When sewage flow is high, the sewage can be concentrated, so that the flow of the sewage entering a sewage plant is low, treated sewage load is reduced, and simultaneously, pressure of a pipe network is reduced. The sewage is concentrated and filtered to form clear water, and the clear water is drained to a downstream river way.

Description

A kind of sewage concentration drainage device

Technical field

The present invention relates to a kind of sewage concentration drainage device, when particularly the rainy day, sewage quantity was larger, is concentrated and collect discharge and reutilizing device.

Background technology

The combined system of formula is directly let out in the Small Urban most employing of existing system, and the unprocessed water body that directly enters of most of sewage, causes the pollution of natural water, also makes The Surroundings in Cities go from bad to worse.Select shutoff type combined drainage system and can utilize the existing pipe duct in cities and towns, can effectively process sewage again.Concerning Small Urban, be not only economical but also rational.Shutoff type combined drainage system is along the water body parallel lay-up main that dams, and to collect the sewage of each arm, main, several catchpits is set on the appropriate location of main of damming.The working condition of shutoff type combined drainage system: during fine day, the main of can considering during design to dam is sent to Wastewater Treatment Plant whole sanitary sewages and industrial wastewater and processes; During the rainy day, when the run-off of precipitation is very large, the discharge of sewage surpasses the conveyance power of water of the main that dams, and its water yield exceeding directly enters water body by catchpit, and all the other are transported to Wastewater Treatment Plant.

At present relevant pollution cutting device is a lot, for example: the lower opened overflow type sewage intercepting well that the patent No. is CN200720109960.7.But these inventions have following weak point: 1) lack sewage preprocessing function in early stage; 2) scope of application is subject to regional limits; 3) device is complicated, and cost is higher.

Summary of the invention

The object of the present invention is to provide a kind of sewage concentration drainage device, to overcome the deficiencies in the prior art, while making sewage quantity larger, sewage is concentrated, thereby alleviates Sewage Plant burden, and the clear water after concentrating can enter downstream river course.

For achieving the above object, the technical solution adopted in the present invention is as follows:

The present invention includes water inlet pipe, filtrate, overfall, pressure valve, film, catch basin, strong sewage gutter, clear water gutter, fine day sewage drainage pipe, blow-down pipe, interior wall, a wall, film is installed body of wall, exterior wall.Exterior wall and interior wall are annular, and there are two water inlets exterior wall middle and upper part, and interior exterior wall is concentric circles, between interior exterior wall, be pretreatment chamber, pretreatment chamber the inside is provided with filtrate and blow-down pipe, and filter material layer is located at the top of pretreatment chamber, the bottom of water inlet pipe, and blow-down pipe is respectively established one above exterior wall bottom and filter material layer, in interior wall the inside, be provided with a wall, between wall will interior wall the inside be divided into two parts that area is equal, be respectively collecting chamber and enriched chamber, on near interior wall collecting chamber, there are two overfalls and a fine day sewage drainage pipe, overfall is below filter material layer, fine day sewage drainage pipe is in the interior wall bottom below overfall, and fine day sewage drainage pipe leads to rainy day sewage concentration drainage device outside through exterior wall, on fine day sewage drainage pipe, has pressure valve, between between collecting chamber and enriched chamber, there are three overfalls wall top, the particular location of this overfall is determined according to local hydrological data, the inside, enriched chamber is provided with concentrated membrane structure, concentrated membrane structure comprises two films, two films are installed body of wall, clear water gutter and strong sewage gutter, two films are installed relatively, two films are installed body of wall and are relatively installed, be tetragonous cone table shape structure, at tetragonous cone table top, be provided with the braiding channel of square-section ring-type, clear water gutter is arranged on film and installs below body of wall obtains, in braiding channel, be provided with strong sewage gutter, strong sewage gutter is directly installed body of wall through film, interior wall and exterior wall lead to sewage concentration drainage device outside, catchment is square loop configuration, the upside of body of wall is installed at the top of film film, at film, body of wall and film inner side formation loop configuration are installed.

The pollutants such as described filtrate is flyash or recessed soil, arranges ringwise, can solve surrounding water inlet problem, can also remove the larger impurity such as leaf that are mingled with in rainwater, while energy adsorption of nitrogen phosphorus.

Described concentrated film is arranged on two face walls, the alternate layout of film on two face walls forms tetragonous cone table shape structure, 50 °-60 °, angle of inclination when film is laid, film is fixed on film and installs on body of wall while installing, clear water gutter is arranged on film and installs on body of wall, through interior wall and exterior wall, sewage is entered to downstream river course, there is the effect of concentrated sewage.

Accompanying drawing explanation

Fig. 1 is sewage concentration drainage device structural representation

Fig. 2 is sewage concentration drainage device top view.

Fig. 3 is the front view of concentrated membrane structure.

Fig. 4 is the top view of concentrated membrane structure.

Wherein, 1-water inlet pipe, 2-filtrate, 3-overfall A, 4-pressure valve, 5-overfall B, 6-film, 7-catch basin, 8-strong sewage gutter, 9-clear water gutter, 10-fine day sewage drainage pipe, 11-blow-down pipe A, 12-interior wall, a 13-wall, 14-film is installed body of wall, 15-exterior wall, 16-blow-down pipe B.

The specific embodiment

As shown in Figure 1, the present invention is mainly comprised of water inlet pipe 1, filtrate 2, overfall A 3, pressure valve 4, overfall B 5, film 6, catch basin 7, strong sewage gutter 8, clear water gutter 9, fine day sewage drainage pipe 10, blow-down pipe A 11, interior wall 12, a wall 13, film installation body of wall 14, exterior wall 15, blow-down pipe B 16.

Sewage is first by water inlet pipe 1 access to plant on exterior wall 15, through the annular filter bed of material 2, sewage is carried out to pretreatment, remove as branch, the larger pollutant such as leaf, through pretreated sewage, through the overfall A3 on interior wall 12, enter collecting chamber, when sewage quantity is less, pressure valve 4 is opened, sewage enters pipe network by gutter 10 and enters Sewage Plant and process, and pressure valve 4 is controlled by hydraulic pressure size; When sewage quantity is larger, when the pressure of pressure valve 4 reaches a certain value, pressure valve 4 is closed, and the water surface rises, and the overfall B5 of sewage from a wall 13 enters enriched chamber; Sewage in enriched chamber concentrates through film 6, increase along with concentration time, film pressure increases, strong sewage water level rises and overflows to catch basin 7, clear water sees through film and drains from gutter 9, in catch basin 7, by strong sewage gutter 8, strong sewage is entered in reservoir, strong sewage gutter 8 utilizes siphonage, utilizes the water level high difference pressure of catch basin and reservoir that sewage is drained; When device need to overhaul, sewage is by blow-down pipe A 11 and blow-down pipe B 16 emptying, and blow-down pipe A 11 is positioned at filtrate below, at the bottom of approaching pond, bottom of device sewage is drained, blow-down pipe B 16 is positioned at filtrate top, approach filter material layer, by the sewage of filter material layer top draining-off sewage enrichment facility as early as possible.

Claims

1. a sewage concentration drainage device, is characterized in that: comprise water inlet pipe (1), overfall A(3), pressure valve (4), overfall B(5), film (6), catch basin (7), strong sewage gutter (8), clear water gutter (9), fine day sewage drainage pipe (10), interior wall (12), a wall (13), film install body of wall (14), exterior wall (15); Described exterior wall (15) and interior wall (12) are annular, there are two water inlet pipes (1) exterior wall (15) middle and upper part, interior exterior wall is concentric circles, between two annulus, it is pretreatment chamber, described pretreatment chamber the inside is provided with filtrate (2), filtrate (2) is located at the top of pretreatment chamber, the bottom of two water inlet pipes (1); Between described interior wall (12) the inside, wall (13) is divided into two parts that area is equal by interior wall, is collecting chamber and enriched chamber; On the interior wall of described collecting chamber (12), there are three overfall A (3) and a fine day sewage drainage pipe (10); There are three overfall B (5) wall top between collecting chamber and enriched chamber; The inside, described enriched chamber has two sides film vis-a-vis that body of wall (14) and two films (6) are vis-a-vis installed, film (6) is fixed on film and installs on body of wall (14) while installing, described film (6) is arranged on two films and installs on body of wall (14), the alternate layout of film on two face walls (6) forms tetragonous cone table shape structure ,-60 ° of settings in 50 °, film (6) angle of inclination; Clear water gutter (9) is arranged on film installation body of wall (14) and above through interior wall and exterior wall, sewage is discharged, in the top of film (6), have catch basin (7), in catch basin (7), be provided with strong sewage gutter (8), strong sewage gutter (8) is directly through interior wall (12) and exterior wall (15).

2. sewage concentration drainage device according to claim 1, is characterized in that: in described filtrate (2) below, approach on the exterior wall (15) at the bottom of pond and establish a blow-down pipe A(11), sewage concentration drainage device bottom sewage is drained; On the exterior wall (15) that approaches filtrate (2) top, establish a blow-down pipe B(16), by the sewage effluent sewerage enrichment facility of filtrate (2) top.

3. sewage concentration drainage device according to claim 2, is characterized in that: described filtrate (2) is flyash or recessed soil, arranges ringwise.

4. according to sewage concentration drainage device described in claim 1 or 2, it is characterized in that: described overfall A(3) in filtrate (2) below, fine day sewage drainage pipe (10) is in the bottom of interior wall (12),, there is pressure valve (4) below in overfall A (3) on gutter.